import random
def v_code():
    ret = ""
    for i in range(5):
        num = random.randint(0, 9)
        letter = chr(random.randint(97, 122))
        Letter = chr(random.randint(65, 90))
        s = str(random.choice([num,letter,Letter]))
        ret += s
    return ret
print(v_code())
